> > Just a recap:
> > you pass through:
> > - 3 physical nics/IGB
> > - 1 ISDN pci ISDN box
>
> The redfone box runs on 1 of the nics - its not seperate. It converts
> ISDN to TDMoE see here.. http://www.red-fone.com/ 
>
> > - all using msi/msi-x interrupts ?
>
> I tried using msi/msi-x interrupts, but it caused the raid card to drop
> off (after some use) and provided seemingly even worse performance than
> pegging everything back to legacy.
Were you able to get a serial log and hit all of the differetn debug options
when the the RAID card died?
>
> > 
> > Have you tried using a PV domU instead of a HVM domU ?
>
> I initially tried PV but had issues with the igb NIC's. There was
> another thread somewhere about my issues with that.
Hmm, the only other thread I see from you is about the RAID.
>
>
> > Have you tried passing through only the ISDN box, and let the network run 
> > with the xen backend/frontend to rule out the IGB/network stuff ?
Mr. Sander idea of isolating one piece by piece is the right way.
There is a bunch of warnings in the QEMU output - some of them quite .. 
troubling.
You seem to have issues with gntdev (as in, not found), but if you are using 
OpenSuSE
then that would work - I think. When you tested xen-unstable did you use the
OpenSUSE kernel or the PV-OPS one?
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